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TECHNICAL PAPERS: Heat Transfer in Manufacturing

Experimental Investigation of Heat Dispersion Due to Impregnation of Viscous Fluids in Heated Fibrous Porous During Composites Processing

[+] Author and Article Information
Kuang-Ting Hsiao, Hans Laudorn, Suresh G. Advani

Mechanical Engineering Department, University of Delaware, Newark, DE 19716

J. Heat Transfer 123(1), 178-187 (Jul 20, 2000) (10 pages) doi:10.1115/1.1338131 History: Received January 06, 1999; Revised July 20, 2000
Copyright © 2001 by ASME
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References

Hsiao,  K.-T., and Advani,  S. G., 1999, “A Theory to Describe Heat Transfer During Laminar Incompressible Flow of a Fluid in Periodic Porous Media,” Phys. Fluids, 11, No. 7, pp. 1738–1748.
Quintard,  M., Kaviany,  M., and Whitaker,  S., 1997, “Two-Medium Treatment of Heat Transfer in Porous Media: Numerical Results for Effective Properties,” Adv. Water Resour., 20, pp. 77–94.
Bruschke,  M. V., and Advani,  S. G., 1994, “A Numerical Approach to Model Non-Isothermal, Viscous flow with Free Surfaces Through Fibrous Media,” Int. J. Numer. Methods Fluids, 19, pp. 575–603.
Liu,  B., and Advani,  S. G., 1995, “Operator Splitting Scheme for 3-D Temperature Solution Based on 2-D Flow Approximation,” Computational Mechanics, 38, pp. 74–82.
Lee,  L. J., Young,  W. B., and Lin,  R. J., 1994, “Mold Filling and Cure Modeling of RTM and SRIM Processes,” Composite Structures, 27, No. 1–2, pp. 109–120.
Gao,  D. M., Trochu,  F., and Gauvin,  R., 1995, “Heat Transfer Analysis of Non-Isothermal Resin Transfer Molding by the Finite Element Method,” Mater. Manuf. Processes, 10, No. 1, pp. 57–64.
Tucker III, C. L., and Dessenberger, R. B., 1994, “Chapter 8th, Governing Equations for Flow and Heat Transfer in Stationary Fiber Beds,” in Flow and Rheology in Polymer Composites Manufacturing, S. G. Advani, ed., Elsevier Science, New York.
Dessenberger,  R. B., and Tucker ,  C. L., 1995, “Thermal Dispersion in Resin Transfer Molding,” Polym. Compos., 16, No. 9, pp. 495–506.
Chiu, H.-T., Chen S.-C., and Lee, L. J., 1997, “Analysis of Heat Transfer and Resin Reaction in Liquid Composite Molding,” ANTEC, pp. 2424–2429.
Lin,  R., Lee,  L. J., and Liou,  M., 1991, “Non-Isothermal Mold Filling and Curing Simulation in Thin Cavities with Preplaced Fiber Mats,” Int. Polym. Process., 6, pp. 356–369.
Bickerton,  S., and Advani,  S. G., 1999, “Characterization of Racetracking in Liquid Composite Molding Process,” Composites Science and Technology, 59, pp. 2215–2229.
Tucker ,  C. L., 1996, “Heat Transfer and Reaction Issues in Liquid Composite Molding,” Polym. Compos., 17, No. 1, pp. 60–72.
Mal,  O., Couniot,  A., and Dupret,  F., 1998, “Non-Isothermal Simulation of the Resin Transfer Moulding Process,” Composites Part A, 29A, pp. 189–198.
Koch,  D. L., and Brady,  J. F., 1985, “Dispersion in Fixed Beds,” J. Fluid Mech., 154, pp. 399–427.
Kaviany, M. V., 1995, Principles of Heat Transfer in Porous Media, 2nd ed., Springer-Verlag, New York, pp. 157–258.
Pillai,  K. M., and Advani,  S. G., 1998, “Numerical Simulation of Unsaturated Flow in Woven or Stitched Fiber Mats in Resin Transfer Molding,” Polym. Compos., 19, No. 1, pp. 71–80.
Chang,  H.-C., 1982, “Multi-Scale Analysis of Effective Transport in Periodic Heterogeneous Media,” Chem. Eng. Commun., 15, pp. 83–91.

Figures

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Experimental setup of the mold (photograph and schematic)
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Dimensions of the mold cavity and the locations of thermocouples
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Comparison of the experimental temperature histories of the uni-directional fiberglass roving; Experiments 1 (black lines): the fiber-roving orientated perpendicular to the flow direction. Experiment 2 (gray lines): the fiber-roving orientated along the flow direction. The thermocouples locate along the mid-plane of the mold cavity as shown in Fig. 1 and Fig. 2.
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Centerline temperature history for carbon biweave (Experiment 5) at the seven locations as shown in Fig. 1 and Fig. 2
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Kyy versus the Peclet number for the experiments using carbon biweave preform with fiber volume fraction of 43 percent
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The significance of heat dispersion for the steady state temperature predictions for four different Peclet numbers. The dependence of Kyy on Peclet number must be considered to match the experimental data from the carbon biweave cases.
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Kyy versus Peclet number for the experiments using the random fiberglass preform with fiber volume fraction of 22 percent.
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The centerline temperature history at seven locations as shown in Fig. 1 and Fig. 2; random fiberglass, εS=22 percent,〈u〉x=0.826 cm/sec,Pe=dp〈u〉/2αf=6.28,Kyy=0.94 W/m⋅K=3.41kf

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